 Two experiments executed in three phases:  Exploration: we initialize an empty policy and let the system learn in real time  Exploitation: the agent simply uses the previously-learned policy to automatically resolve bottlenecks  Baseline: scale up every replicable tier every time a bottleneck occurs The workload pattern modeling method learns a clustering model: Update Q-value for each act...

Understanding security failures of cryptographic protocols is the key to both patching existing protocols and designing future schemes. Recently, Yeh et al. showed that Hsiang and Shih’s password-based remote user authentication scheme is vulnerable to various attacks if the smart card is nontamper resistant, and proposed an improved version which was claimed to be efficient and secure. In this...

We use two US court rulings as exogenous shocks to firms' litigation environment and examine the changes in conservative financial reporting following these decisions. The Silicon Graphics ruling 1999 imposed a heightened pleading standard discouraged filing of shareholder lawsuits against firms with headquarters Ninth Circuit. Tellabs 2007, however, effectively reversed made it easier file sec...

The growing importance of enterprise risk management and the resulting integration efforts put the need for separate IT risk management frameworks in question. In this research we analyse common and distinct elements of the COSO enterprise risk management and ISACA Risk IT frameworks. The analysis affirms the hypothesis that separate IT risk management frameworks are redundant.

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Goal-Oriented Requirements Engineering (GORE) is an approach to requirements engineering dealing with intentionality in accordance with the relations among different actors. KAOS and i* (i-star) frameworks have been receiving many references as being important GORE proposals. This paper presents an conceptual analysis comparing characteristics of those methods giving examples related to actors’...